Well-boring device



L. W. NORRIS WELL BORING DEVICE. APPLICATION FILED AUG 31,1920.

PatentedAug. 29, 1922.

31404244 501 Lewzs WA/orrz's.

rrsn srA 'ss LEWIS w, nonnrs or oAK Ann, CALIFORNIA.

r rnr "FFICE;

WELLLBORING DEVICE.

' Specification ofIiettersPatent. ramm d Aug. 29, 1922.

Application file'd August 31, 1920. =Seri-a1 No. 407345;

i= cilia/ 1cm it may concern:

Be it known that I. LnwIsVV. NORRIS,-L

citizen oi the United States, resicli11g i at, @aklandiginthe county of Alameda and State Referring to the annexed drawing in which my inventionis illustratedand which terms a part of this'specification,

Figure 1 is a front elevation of my rig with the drill gripping parts in their uppermost position holding the drill elevated.

Figure 2 is a view similar to Figure 1 with the drill gripping parts in their lowermost position and about to grip and elevate the drill.

Figure 3 is a transverse vertical section of the rig taken on line 3-3 of Figure 2.

Figure A is an enlarged plan view of one of the drill gripping levers and jaws.

Figure 5 is'an enlarged side view of said gripping lever and jaw In the drawing, 1 indicates a base on which are bolted standards 2, 3, 4:, 5, 6, 7, 8 and 9 in which are guideways 10. ()n the front of said standards are bolted bearings 11, 12, 13, 14, 16, 17 and 18 respectively, in which is journaled a horizontal crank shaft 20 having cranks 21, 22, 23 and 24 located respectively between the standards 2 and 3, 4t and 5, 6 and 7, and 8 and 9. The cranks 22 and 23 extend from the shaft 20 at the same angle while the cranks 21 and 24 also extend from the shaft at the same angle but in advance of the cranks 22 and 23. A cross head 25 is slidably mounted in the guideways 10 of the standards 2 and b. A crosshead 26 is slidably mounted in the guideways 10 ot the standards t and 5. A erosshead 27 is slidably mounted in the guideways 10 of the standards 6 and 7. A crosshead 28 is slidably mounted in the guideways 10 ot the standards 8 and 9. A pitman 29 connects the crank 21 and the crosshead 25. A pitman 30 connects the crank 22 and the crosshead 26. A pitinan 31 connects the crank 23 and the crosshead 27, A pitman 32 connects the crank 24 and the crosshead 28. A gripping lever 35 is pivoted at 36 and 37 to the upper partof the cross heads 25 and 26. A gripping lever 40 is pivoted at ll and 4-2 to the crossheads 27 a speciticw i and 28. The base 1 is provided with an opening 48 between "the standards "5 and 6 through wlnchopeningthe drill '45 extends into the ground and a plate 46 is-bolted to the top ot ithe standards 5 and 6ithrough which I the drill extends. 011 the ends ofthegripping ievers35 and 40 are pivoted 'drill gripping jaws 50 and 51 respectively; -Each jaw includes a pivoted supporting inember52--and a gripping member 53. Themember '52of each jaw has a pair of spaced ears 5at'which fit over theends oi": the gripping levers35 ancbt-O and 'are )ivotedther'eto bypivot pins The imem ers 52 also have vertical flanges 56 and the members 53 have vertical flanges D4 which rest against the flanges 56 and. are riveted thereto by rivets58 whereby the members 53 are detachably secured to the members 52. The gripping faces of the jaw members 53 have vertical semi circular grooves 59 adapted to fit the drill at opposite sides. On the top of each jaw member 52 is a lug 60 and lugs 61 extend from the upper side of the levers 35and 40. n An expansion spring 65 is interposed between each lug 60 and a lugs 61. A horizontal plate 70 extends between the standards 5 and 6 and is secured to angle irons '71 which are secured to said standards, the drill 45 extending through an opening in said plate. Dogs 7'2 and '73 are pivoted to the upper side of said plate so that they may be swung into and out of engagement with the drill. The dogs are thrown into engagement with the drill to hold the drill elevated. A gear 75 is secured to one end of crank shaft 20 to which gear power is applied to rotate the shaft. A fly wheel 7 6 issecured on the other end of said crank shaft, An arm 80 is se cured to the shaft for engaging the drill 5 at each revolution and turning the drill.

lVhen the cranks 21, 22, 28 and 2% move upwardly, the cranks 21 and 24 moving in advance ofthe cranks 22 and 23 swing the aw ends of the levers 35 and .40 downwardly 3? and 41 and cause the jaws and 51 to release the drill 4-5, which drops by gravity.

The arm 80 engages the drill 45 and turns it while the drill is released and in its lowermost POSIUOD On the downward movement of the jaws 50 and 51 the springs 65 swing the jaws downwardly so that their lower edges do not bind and hold up the drill.

Having described my invention, I claim: 1. A well drill rig including a pair of gripping levers, jaws on the ends of said levers adjacent the drill, two slidably mounted cross heads on which each lever is pivoted, a crank shaft formed with four cranks, a pitinan connecting each cross head with one of said cranks, two of said cranks extending at an angle in advance of the other two cranks whereby said levers are swung to cause said jaws to grip and elevate the drill and to cause the jaws to release the drill when elevated.

2. A. well drill rig including a pair of levers, jaws on said levers tor gripping the drill, a crank shaft, means actuated by said crank shaft for swinging said levers to cause said jaws to grip and elevate the drill and to release the drill when elevated, and an arm secured on said crank shait tor engaging and turning said drill.

3. A well drill rig including a pair of levers, jaws on said levers for gripping the drill, a crank shaft, nieans actuated by said crank shaft for swinging said levers to cause said jaws to grip and elevate the drill and to release the drill when elevated, and springs for urging said jaws downwardly so that the lower edges oi? the jaws will not bind on the drill when the jaws have elevated the drill and said levers swung to release the jaws.

4. A jaw made in two parts, one part being -formed with a gripping surface, flanges on each part, and means for securing the flanges oi one part to the flanges ol' the other part. I

In testimony whereof I athx my signature.

LEWIS W. NORRIS. 

